It's the first question every rider asks — and the honest answer is: it depends on more than just the wind.
Most size charts give you a number based on wind speed alone. That's a starting point, but it's not enough. Two riders in the same conditions with the same wing will have completely different experiences if one weighs 65kg and the other 95kg. Add riding level and style into the mix and the picture changes again.
Here's how we think about it at Ezzy, after decades of designing wings and sailing in real conditions.
The four variables that actually matter
1. Your weight
Weight is the single biggest factor. A heavier rider needs more surface area to generate the same lift at the same wind speed. As a rough guide:
- Under 65kg — you can comfortably go one size smaller than average recommendations
- 65–80kg — mid-range, standard recommendations apply
- 80–95kg — you'll need more surface area, especially in the lower wind range
- Over 95kg — always size up, particularly for light wind sessions
2. Your wind range
Not just the average — the minimum and the maximum matter differently.
Your minimum wind determines the largest wing you need. If you want to get on the water at 12 knots, you need a wing that generates enough power at 12 knots for your weight. Your maximum wind determines the smallest wing — the one you'll reach for when it's really pumping and you need control.
The gap between those two numbers tells you whether one wing can realistically cover your conditions or whether you need a quiver.
3. Your level
This one is often ignored in size charts, but it makes a real difference.
A beginner needs more surface area — not because the physics are different, but because early foiling requires more power to get up and more stability to stay up. As your technique improves, you can work with less wing, use the wind more efficiently, and handle higher speeds on smaller sizes.
At Ezzy we adjust recommendations by level:
- Beginner — slightly larger sizes, limited to the more manageable part of the range
- Intermediate — standard baseline
- Advanced — progressively wider range in both directions
- Expert — maximum range, smallest sizes accessible in strong wind
4. Riding style
Freeride, wave and downwind have genuinely different demands.
Freeride is the all-rounder — range and ease are the priority. Wave favors control and handling, which means slightly earlier sizing (more power available when you need to maneuver). Downwind is about low-end efficiency — you're pumping to catch runners, so the bottom end of the range matters more.
One wing or a quiver?
If your wind range is tight — say 18 to 28 knots — one wing can probably cover it well. If you're trying to cover 10 to 35 knots with a single wing, you're always going to be compromising at one end.
A two-wing quiver typically covers a spread of around 20 knots comfortably. A three-wing quiver can cover the full range most riders encounter across a season.
The key is that the wings in your quiver should overlap slightly — not too much, not too little. An overlap of 3 to 6 knots between adjacent wings means clean transitions with no gaps in your range.
The Ezzy Flight Wing V3 range
Our current range covers the full spectrum:
| Size | Ideal wind range* | Best for |
|---|---|---|
| 6.0 | 10–17 kn | Light wind, heavier riders |
| 5.5 | 12–19 kn | Light to moderate |
| 5.0 | 14–22 kn | Moderate, all-round |
| 4.5 | 16–24 kn | Mid-range freeride |
| 4.0 | 18–26 kn | Moderate to strong |
| 3.5 | 21–29 kn | Strong wind |
| 2.8 | 23–33 kn | Strong to very strong |
| 2.2 | 29–39 kn | Storm sessions |
*For an intermediate rider at 70–75kg. Your numbers will shift based on weight and level.
A practical example
Rider: 78kg, intermediate, freeride, typical conditions 15–28 knots.
- One wing: 4.0 — covers the mid-range well, will feel light at 15kn and pushed at 28kn
- Two wings: 5.0 + 3.5 — clean coverage, natural transition around 20–22kn
- Three wings: 5.5 + 4.0 + 2.8 — full range covered with proper overlap at both ends
That's not a generic recommendation — it's what the physics and the real-world range data suggest for that specific profile.
Try it yourself
Rather than working through the numbers manually, we built a tool that does this calculation for you — including wind forecast integration so you can see which wings in your quiver will be in range over the next 3 days.
Enter your weight, wind range, level and riding style. It will show you the go-to wing, the optimal 2-wing quiver and the full 3-wing setup — with a visual chart of where each wing performs.
If you already own wings and want to know what to add next, use the "Complete your quiver" mode.
At Ezzy we don't believe in overselling or in telling people what they want to hear. If the numbers say you need a bigger wing, we'll tell you. The goal is always to get you on the water with the right equipment — not the most equipment.
